Final answer:
The personal watercraft is the stand-on vessel when being overtaken by another boat, which is the give-way vessel. The overtaking boat must take action to avoid collision, ensuring safety on the water.
Step-by-step explanation:
When a boat is overtaking a personal watercraft, the rules of navigation define which is the stand-on vessel (the vessel that must maintain its course and speed) and which is the give-way vessel (the vessel that must take action to avoid collision).
In the scenario described, as a general rule, the overtaking vessel (the boat in this case) is considered the give-way vessel and must take action to avoid a collision. The personal watercraft being overtaken is the stand-on vessel and should maintain its course and speed unless it becomes clear that the boat overtaking it is not taking appropriate action to avoid a collision.
It's important for all operators to understand these rules to prevent accidents on the water and ensure the safety of all parties involved.